Unit 2: 13.3 Flashcards
1
Q
Does triclosan reduce the spread of disease
A
No
2
Q
How do heavy metals kill bacteria?
A
Heavy metals kill microbes by binding to proteins which inhibit enzymatic activity
3
Q
Mercury
A
- controls microbial growth
- treats syphilis
4
Q
Silver
A
- used as an antiseptic
- make antibiotics more effective
5
Q
Copper
A
Lines incubators and help reduce the contamination of cultures
6
Q
Zinc chloride
A
Safe for humans and commonly found in mouthwashes
7
Q
Which halogens are commonly used for disinfection?
A
- Iodine
- Chlorine
- Fluorineb
8
Q
Surfactants
A
Group of chemical compounds they lower the surface tension of water that creates emulsions that mechanically carry away microbes
-soaps and detergents
9
Q
Quaternary ammonium salts (quats)
A
Cationic detergents that disrupt membranes
10
Q
Are soaps considered disinfectants?
A
No since they do not kill or inhibit microbial growth
